public UnaryOp(Token op_, AST value_)
{
op = op_;
value = value_;
}
public Parser(Lexer lexer_)
{
lexer = lexer_;
current_token = lexer.getNextToken();
}
public Num(Token token_)
{
token = token_;
value = token_.value;
}
public Var(Token token_)
{
token = token_;
value = token.value;
}
public BinOp(AST left_, Token op_, AST right_)
{
left = left_;
token = op = op_;
right = right_;
}